#include "Vector2D.h"
#include "Math3D.h"


const Vector2D Vector2D::ZERO( 0, 0);

const Vector2D Vector2D::UNIT_X( 1, 0);
const Vector2D Vector2D::UNIT_Y( 0, 1);
const Vector2D Vector2D::NEGATIVE_UNIT_X( -1,  0);
const Vector2D Vector2D::NEGATIVE_UNIT_Y(  0, -1);
const Vector2D Vector2D::UNIT_SCALE(1, 1);

